Improvement in refrigerators



C. ZONCADA.

Improvement in Refrigerators.

Patented Aug. 6,1872.

UNITED STATES PATENT Orrron.

CHARLES ZONGADA, OF INDIANAPOLIS, INDIANA.

IMPROVEMENT IN REFRIGERATORS.

Specification forming part of Letters Patent No. 130,267, dated August6, 1872.

' of the same.

The device may be made of any convenient size.

6 is a square wooden box. Inside of this is a metal box, represented byh z 70 f. This interior metal box is considerably smaller than theexterior wooden box, so that a convenient space will be left between thetwo boxes. The interior chamber 1 of the box h v; k f forms a receptaclefor the food and liquids to be cooled,

and is to be closed by a convenient door, as represented in Fig. 1 by a.A tube, b, of proper size, enters the chamber between 0 and k, above thepartition formed by the projection of '5. Below this again is anothertube, at, which'connects with the bottom of the chamber between i and e.This tube (1 is provided with a stop-cock, represented by c. All thevarious parts of the device are to be as represented in the drawing.

To use this device, a supply of cold water, which may come from ahydrant or any other convenient source, is let in at the tube b. Thiswater, rising up between 6 and It, will come onto f, and, still rising,pass over the upward projection of h, and flow down between it and 6into the space between 73 and 0. Now, if the stop-cock c be closed, thewater will gradually fill the spaces between i and e and h and e. Ifatmosphere is confined in the top of the space between f and e, astop-cock or door, or any other convenient device, may be provided forits escape. When the space between the wooden box 0 and the metal box hz 70 f is all filled with water, if the stop-cock c be sufficientlyopened the cool water will flow continuously through the tube 1), around70 f h z, and out at d, until the supply is exhausted, keeping all thefood, liquids, and the like deposited in the chamber 1 at the sametemperature of the water, which it will be found is too low for the Iformation of insect and vegetable germs. In this way food and the likemay be preserved almost if not quite as effectually as by the use ofice. But there are many fluids which will be found to be better whenthey are cooled in this way.

I claim The combination and arrangement of the wooden box 0, the metalbox h 43 70 f, the tubes b and d, for the passage of a continuouscurrent of cool water flowing between the outer box 0 and inner box h zk f, for the purpose and in the way substantially as set forth.

In testimony that I claim the .foregoin g specification I have hereuntoset my hand this 22d day of June, 1872.

OHS. ZONOADA.

Attest:

JOHN MUELLER, R. W. FELDKAMP.

